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91.发明授权公开(公告)号：US11444548B2
公开(公告)日：2022-09-13
申请号：US17275447
申请日：2020-06-19
申请人： SHANDONG UNIVERSITY
发明人： Chunshui Du
摘要： A single-phase device-multiplexing active power decoupling cascaded rectifier and control method thereof. The rectifier includes: n device-multiplexing active power decoupling H-bridge units that are cascaded, n≥2; each unit including: a bridge arm H1 and a bridge arm H2 connected in parallel, a decoupling capacitor branch formed by two capacitors connected in series, and a resistive load; a decoupling inductor being connected in series between a midpoint of the decoupling capacitor branch and a midpoint of bridge arm H2; and a bridge arm H1 of a first unit being sequentially connected in series to an inductor, resistor, and power supply, and then connected to a bridge arm H2 of a last unit. A power switch module of an H-bridge rectification unit is multiplexed, which not only realizes unit power factor rectification of the unit, but also provides a loop for secondary ripple power to achieve secondary ripple power decoupling control.
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公开(公告)号：US20220285930A1
公开(公告)日：2022-09-08
申请号：US17827422
申请日：2022-05-27
发明人： Robert L. Seagren
摘要： A system includes a transformer rectifier unit (TRU) having three inputs, a first AC bus configured to supply power to a first of the three inputs, a second AC bus configured to supply power to a second of the three inputs, and a third AC bus configured to supply power to a third of the three inputs. The system includes a power quality sense device electrically connected to each of the first, second and third AC busses. The system includes an electrically held contactor electrically connected between the TRU and the power quality sense device. The electrically held contactor is configured and adapted to be switched ON or OFF depending on whether the power quality sense device is energized or de-energized.
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公开(公告)号：US11418127B2
公开(公告)日：2022-08-16
申请号：US17432189
申请日：2019-02-28
摘要： The present disclosure relates to a converter cell (4) for a power converter. The cell comprises a plurality of semiconductor devices (T) forming a half-bridge or full-bridge topology in the cell. The cell also comprises an energy storage (5) connected across the at least one switch leg (6). The cell also comprises a crowbar leg (7) connected across the at least one switch leg, comprising a plurality of series connected semiconductor crowbar switches (C) arranged to short-circuit the energy storage (5). The cell also comprises first and second AC terminals (A, B), wherein at least one of said AC terminals is connected to one of the at least one switch leg, between two of the plurality of series connected semiconductor devices of said switch leg, and connected to the crowbar leg, between two of the plurality of series connected crowbar switches of said crowbar leg.
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公开(公告)号：US20220255358A1
公开(公告)日：2022-08-11
申请号：US17732713
申请日：2022-04-29
发明人： Yunhe MAO , Zhixian WU , Yanding LIU
IPC分类号： H02J50/12 , H02J50/80 , H02J7/00 , H02M7/217 , B60L53/126
摘要： A wireless charging receiver, system, and control method, and relates to the field of wireless charging technologies are disclosed. A receiver coil of the receiver converts an alternating magnetic field transmitted by a transmitter to an alternating current, and delivers the alternating current to a compensation network. The compensation network compensates the alternating current, and then delivers the compensated alternating current to a rectifier. The rectifier rectifies the compensated alternating current to a direct current, and supplies the direct current to a load. The compensation network is a compensation circuit with a current source characteristic, so that the receiver coil and the compensation network, acting together with the transmitter, make an input end of the rectifier a constant current source.
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公开(公告)号：US11387670B2
公开(公告)日：2022-07-12
申请号：US17162343
申请日：2021-01-29
IPC分类号： H02J9/06 , H02M7/217 , H02M7/5387 , H02M1/42
摘要： An Uninterruptible Power Supply (UPS) system, the UPS system comprising an input configured to receive input AC power having an input voltage level and an input frequency, an output configured to provide output AC power to a load, the output power having an output voltage level and an output frequency, a converter coupled to the input and configured to convert the input AC power into DC power, an inverter coupled to the output and configured to convert the DC power into the output AC power and provide the output AC power to the output, a DC bus coupled between the converter and the inverter including a first capacitive element and a second capacitive element, the first capacitive element being coupled to a first output and a second output of the converter and the second capacitive element being coupled to a first input and a second input of the inverter, a de-coupler circuit coupled between the first and second capacitive elements and configured to selectively decouple the inverter from the converter, and a controller configured to operate the converter, the inverter, and the de-coupler circuit in a first mode of operation such that the output voltage level and output frequency of the output AC power are the same as the input voltage level and input frequency of the input AC power and a second mode of operation such that at least one of the output voltage level or output frequency of the output AC power differs from the input voltage level and input frequency of the input AC power.
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公开(公告)号：US11348417B2
公开(公告)日：2022-05-31
申请号：US17137126
申请日：2020-12-29
申请人： PEGATRON CORPORATION
摘要： A smart doorbell system includes a doorbell switch, an input device, a chime circuit, and a ring circuit. A chime circuit includes a power connection terminal and a first rectifier circuit and a second rectifier circuit coupled to the power connection terminal and connected in parallel. The power connection terminal receives an alternating current including a first direction current and a second direction current that alternate. The input device is coupled to the chime circuit and generates a control signal. The control signal controls one of the first and second direction currents to pass through a corresponding one of the first and second rectifier circuits. The doorbell switch is coupled to the chime circuit and the ring circuit. A trigger signal is generated through the other one of the first and second direction currents when the doorbell switch is pressed, such that the ring circuit produces a ringing sound.
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公开(公告)号：US11342859B2
公开(公告)日：2022-05-24
申请号：US17259367
申请日：2018-07-10
发明人： Rainer Gruber , Martin Pieschel
摘要： An apparatus for supplying power to a high-capacity load includes a three-to-two phase transformer including an input side three-phase transformer terminal for connection to a three-phase supply grid and output side first and second output-side single-phase transformer terminals. A converter arrangement has a first partial converter including a first input-side, single-phase AC voltage terminal for the first output-side transformer terminal and a first single-phase output terminal. A second partial converter has a second input-side single-phase AC voltage terminal for the second output-side transformer terminal and a second single-phase output connector. The partial converters are mutually connectable by the output terminals in an output-side series and/or parallel circuit and form a single-phase load terminal for the high-capacity load. A method for supplying power to a high-capacity load is also provided.
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公开(公告)号：US11325489B2
公开(公告)日：2022-05-10
申请号：US16674396
申请日：2019-11-05
发明人： Shinji Ichikawa
摘要： A power conversion apparatus includes a housing including an AC inlet and a DC connector. The DC connector is connectable to an inlet for DC power of a vehicle. The AC inlet is connectable to a connector of a cable for AC power. A rectifier circuit is housed in the housing. The rectifier circuit is located between the AC inlet and the DC connector, and configured to convert AC power input from the AC inlet side into DC power and output the DC power to the DC connector side.
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公开(公告)号：US11303223B2
公开(公告)日：2022-04-12
申请号：US16625157
申请日：2018-06-01
发明人： Isao Hoda , Jia Li , Hiroki Funato , Ryuji Kurihara
IPC分类号： H02M1/44 , H02M7/5387 , H02M1/12 , H02M1/00 , G01K7/01 , G01R19/165 , H02M7/217
摘要： Provided is a detector. The detector includes: one or more detection diodes configured to detect a change in an environment of a detection target; a Y capacitor including a plurality of capacitors separately disposed between one end of the detection diodes and a GND and between the other end of the detection diodes and the GND; and a rectifier circuit disposed at least between one end of the detection diodes and the GND or between the other end of the detection diodes and the GND, connected in series with the Y capacitor, and configured to transmit a common-mode current accompanying noise induced in the detection diodes to the GND and cut off a normal-mode loop current that flows between the plurality of capacitors and the detection diodes.
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公开(公告)号：US11296533B2
公开(公告)日：2022-04-05
申请号：US16537473
申请日：2019-08-09
申请人： Yazaki Corporation
发明人： Akinori Maruyama
摘要： A bidirectional two-phase chopper circuit boosts a voltage of direct-current power converted by an AC/DC converter to output it to a high-voltage battery and steps down a voltage of direct-current power being supplied to a low-voltage load unit from the high-voltage battery. A connector is connected to a quick charger supplying direct-current power. A connector is connected to a superquick charger supplying direct-current power having a higher voltage than that of the quick charger.
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